M4.6 earthquake 182 km ENE of Neiafu, Tonga
A magnitude 4.6 earthquake struck 182 km ENE of Neiafu, Tonga on Tue, Apr 24, 1973, 4:17 PM GMT-12 (04:17 UTC), 33 km (21 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb), light
- Local time
- UTC
- 1973-04-25 04:17:18 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 17.789° S, 172.514° W
- Region
- Tonga
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Depth from
- OPERATOR_ASSIGNED
- Stations used
- 20
Nearby
Within 100 km, magnitude 1.6 and up: 1 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00001j3. Read Tue, Sep 22, 2026, 8:22 AM UTC.